I'm working on the superjumper example, my problem is when i run the program no graphics are shown on screen. I can see the outline of all the boxes, and can see the outline of bob jumping, but everything else is blank. The same is happening on my own project, which uses pretty much all the same code as super jumper. After some messing about i've figured that its just showing the bottom right pixel, but on the whole screen. If the bottom right pixel is blue, then the whole screen is blue.